Gottlieb kobnig



@@Zf-TLEB KQEv/fjig lwfmg @mimmo n PATENTE@ JAN 71868 VEB; mayas i i wI/a q/:W fig. A 1? JL x @einen tats @anni @fitter- GOTTLIEB I KOENIGU'v `OF' PLYMOUTH, MIC HIGRN. Letters Patent No. 73,1188, dated Jam-tary 7, 1868.

IMPROVED SPRING-BBD BOTTOM.

TO ALL WHM IT MAY CONCERN:

Be it known that I, GOTTLIEB KOE-nm, of Plymouth, in the county of Wayne, and State of Michigan, vhave invented a new and improved SpringBed Bottom; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable those skilled in the art to make and use the same, reference being had tothcaccompanying drawings, forming p'art of this specification.

This invention relates to a new and-improved method ci' constructing the bottom of spring-beds; and the invention consists in an Aarrangement of bars and springs within the'bottom, whereby the action on the springs serves to expand them, instead of compressing them, thus preserving their elasticity and usefulness for a. long' period; it alsoY consists in the general construction and arrangement of parts, as'will hereinafter be more fully described. i

The drawing represents a longitudinal section of a bedstead with the improved bottom attached, the section being-taken near one of` the sides.

Similar lettersof reference indicate corresponding parts.

A represents the hedstead. B is the upper or latticed bottom, upon which rests the bed. C C are two transverse' bars, connected together at their centres by a pivot-joint. D D represent thesprings, Iwhich are spiral in' form. E nre'stop-bolts or rods, by which the action of the springs isI regulated'. F represents the lower frame, which'supports the bars and springs, and which is itseli` supported at the corners of the bedstead. y is tlie pivot,.by which the' bars C are connected. It represents eyos, permanently attached to the bars between which thespiral springs are secured, and supported by rods which pass throuffh the cavity ofthe spiral springs.

The screws which pass through the eyes h keep the ends of the springs in place, as seen in the drawing.

.So far as the bars and springs arc concerned in this arrangement, only one set has been described, but it must be understood that two or more sets are employed to form my spring-bed bottoni. In this example of my invention four are employed, or one on each `of the sides and ends of the bedstcad. The ends of the bars are confined in the rnmeF in mortises, so as to allow of' a free expansion of the springs when weight is placed on the bottom, B. As the springs are adjusted on the bars, their tendency is todraw the ends to which they are attachedtogether. It will be seen that a's the bars approach towards a parallel position, (with each other,) their ends describe arcs of circles, with the pivot g for a centre, and that the springs approach and remain parallel with each other at all times, being expanded as they approach each other by the action 'of the bars, and their tension increased.

By the stop-bolts or rods E E the platform Bis prevented from rising above a certain height, and the height may be varied and the action of the springs controlled by the thumb-nuts J on the regulating-rods E.

By expanding instead of compressing 4thesprings, their tension and elastic power are preserved, and the application in this arrangement is such that a spring-bed bottom of the most durable nature is formed.

Thisbed-bottoin is detachable, and may be used onany bedstcad of suitable size.

Having thus described my invention, I claim as'new, and desire to secure byLetters Patent- The bars C, the. springs D, andthe regulating-rods E, constructed, combined, and. operating with the platform B and the hase-frame F, in combination with a bedstead, substantially as described.

Witnesses: i

JULIUs STOLL, I

IeNscms O Tro. if 

